package servlet;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
 * Created by Administrator on 2017/9/28.
 */
@WebServlet(name = "IpServlet",urlPatterns = "/ipServlet")
public class IpServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        /**
         * 1.先从请求中获取对方IP
         * 2.拿对方的IP和被禁用的比较，是否相同，如果相同，提示：被禁用
         *   如果不同，提示：欢迎..
         */
        response.setContentType("text/html;charset=utf-8");
        PrintWriter out=response.getWriter();
        String ip=request.getRemoteAddr();
        if("171.68.8.26".equals(ip)){
            out.write("被禁用...");
        }else{
            out.write("欢迎....");
        }
    }
}
